Wire-reel or the like



Sept. 18, 1962 F. GERST WIRE-REEL OR THE LIKE 3 Sheets-Sheet 1 FiledNOV. 14:, 1960 Sept. 18, 1962 F. GERST WIRE-REEL OR THE LIKE Filed NOV.14, 1960 3 Sheets-Sheet 2 INVENTOR.

Sept. 18, 1962 F. GERST WIRE-REEL OR THE LIKE 3 Sheets-Sheet 3 FiledNov. 14,, 1960 3,054,575 WIRE-REEL OR THE LIKE Franz Gerst, Schnlstr.10, Ihmert, Westphalia, Germany Filed Nov. 14, 1960, Ser. No. 68,931Claims priority, application Germany Nov. 28, 1959 3 Claims. (Cl.242-129) The present invention relates to a coil for the continuousunwinding of bundles of wire, particularly round or profile material ofa strength of more than mm.

It is known to use a coil for the drawing of thin Wire from a bundle,where a receiving device is provided in front of the pull-off drum,which is freely rotatable, and in particular on the axle of the drum,which receiving device receives a new bundle during the pull-off processand which receiving device does not join the rotation of the drum. Suchcoil has a vertical rotating axis and the transfer of the bundle of wirefrom its reserve position into the pull-off position is brought about bymeans of its own weight.

It is also known to provide in such winding coils controlled inwardlytilting, radially disposed arms cooperating with a wire winding drumwhich serves the purpose to support the bundle of wires to be formed andwhich release the bundle upon stopping the winding drum, in order topermit the falling off and the removing of the bundle of wires.

It is further known to form coils with a horizontal rotating axis whichcomprise supporting arms which constitute the winding drum and extend inaxial direction and which may be tilted inwardly by means of acontrollable operating sleeve, in order to release a wound bundle ofwires.

It is one object of the present invention to provide a coil whichapplies the known principle of arranging controllable supporting arms incoils having a horizontal axis, in order to transfer axially from areceiving device to which a new bundle of wires has been applied, duringthe pull-off process, the new bundle immediately upon emptying of thecoil to the latter, in order to continue the unwinding process withoutany pause.

It is another object of the present invention to provide a coil whichcomprises a plurality of supporting arms disposed in front of ahorizontal coil which is freely rotatable and mounted in an overhungmanner on an immovable axle having a smaller outer diameter than theinner diameter of the bundle and is adapted to receive the new bundle,which supporting arms extend in the receiving position about agenerating line of the drum and are swingable by means of a toggle-jointdrive for the transfer of the new bundle onto the drum for about 90 thatis, outwardly into :a radial position of the drum.

Due to this arrangement, it is possible by simple and operativelyreliable means to bring about an active moving of the new bundle ontothe drum. This leads to an appreciable technical progress particularlyin connection with ring-bending machines cooperating with wire-pullingunits, screwor bolt pieces, since a fast feeding to the bending machinesis now possible without any difficulty in spite of the fact that thevery heavy bundles of wire must be applied by means of a block andtackle and this work cannot be accelerated at Will.

It is still another object of the present invention to provide a coilwherein the housing of the coil has at the other end of the drum a guiderim for the pull-off wire, which has pull-ofi" rollers which aredisposed in a recess and may be formed as guide rollers.

It is yet a further object of the present invention to provide a wirecoil wherein the toggle-joint drive and the supporting arms,respectively, are adjustable by means of a control rod axially movablein the hollow axle for rates atent 3,654,575 Patented Sept. 18, 1962 asimpler operation of the supporting arms, particularly by mechanical orhydraulic means.

With these and other objects in view, which will become apparent in thefollowing detailed description, the present invention will be clearlyunderstood in connection with the accompanying drawings, in which:

FIGURE 1 is a front elevation of the coil;

FIG. 2 is a top plan view thereof;

FIG. 3 is a longitudinal section of the coil in its receiving position;

FIG. 4 is a longitudinal section of the coil in the feeding position;

FIG. 5 is a front elevation of an embodiment in which a bending rolleror trueing attachment is provided instead of the pull-off rollers; and

FIG. 6 is a view showing schematically the operative position of thelatter.

Referring now to the drawings, and in particular to FIGS. :1 and 2, thecoil or the like comprises, in conventional manner, a frame 1 which mayhave leg portions (not shown) and which carries a drum 2 freelyrotatable on a horizontal axle. The drum 2 is equipped at its end facewith a plurality of receiving arms 3. A guide ring 4 is is provided onthe rear side of the drum 2, which guide ring 4 is rigidly secured tothe frame 1. The guide ring 4 has a segment-shaped recess 5 in which ismounted a driven pull-off roller 6 rigidly secured to the frame .1. Acounter roller 7 is disposed adjustably above the pull-off roller 6. Thepull-off roller 6 and the counter roller 7 are preferably equipped attheir periphery with grooves having a contour complementary to that ofthe cross-section of the wire.

The horizontal shaft of the drum 2 is formed as a hollow shaft 8 whichis non-rotatably secured to the frame 1 by means of its flange 9 (FIGS.3 and 4). A disk and a spider 10, respectively, is mounted andnonrotatably secured to the front end of the hollow shaft 8.

A control rod 11 projects through the hollow shaft 8, which control rod1 1 carries a head 12. The control rod 11 performs a reciprocatingmovement by conventional mechanical or hydraulic means (not shown).Three radially disposed bellcrank levers 13 and 14 are pivotallyconnected to the head '12, the outer lever 14 of the bellcrank levers 13and 14 sitting rigidly on a supporting pin 15 which is mounted in aproper bearing 10 of the spider 10. Each of the three receiving arms 3is wedged on the corresponding pin 15 in such manner that upon pullingthe control rod 1-1 into the hollow shaft 8, the receiving arms 3 aretransferred from their substantially radial position into a crown-likesubstantially axial position.

As it may be ascertained quite clearly from FIG. 3, a coil 16 isdisposed on the receiving arms 3, for instance, by means of a liftingwork. This is possible during the operation of the coil, since the drum2 is freely rotatable on the hollow shaft 8.

If now a coil 16 has run out, the drive for the control rod 11 is putinto operation by an electrical contact to close an operation circuit(not shown). The con trol rod 11 is moved out (FIG. 4) and a stretchingof the bellcrank lever members 13 and 14 takes place, whereby thereceiving arms 3 are leveled up to assume their substantially radialposition The coil 16 is transferred thereby from the receiving arms 3 tothe drum 2 and, preferably, move onto .the latter so much that :the endof the wire may be inserted into the pu1l olf roller 6 and counterroller 7 which open automatically, without bending of the end of thereel.

After the pull-01f roller 6 and counter roller 7 resume again theirclamping engaging position, the drive for the pull-off roller 6 is putinto operation and the removal of the wire starts. In the meantime, thecontrol rod arranged in symmetrical position.

11 is returned into its original position, and the receiving arms 3 arebrought again into their loading, substantially axial position by .aproper program control. While the removed coil is in operation, a newcoil may be put on the receiving arms 3 which form the crown of thecoil.

It is possible, and in certain cases, of advantage, to use a set ofstraightening o1- trueing rollers 17, 18 and 19 (FIG. 6) instead of thepull-oil rollers 6, 7 which set of straightening or trueing rollers 17,18 and 19 puts the wire into a substantially straight position.

In order to avoid a pendulum movement for the coil disposed on the drum,the lower half of the guide ring 4 is equipped with two supportingrollers 29 which are The supporting rollers 20 are adjustable, so thatthey may be arranged in accordance with the inner width of the coil.

While I have disclosed several embodiments of the pres ent invention, itis to be understood that these embodiments are given by example only andnot in a limiting sense, the scope of the present invention beingdetermined by the objects and the claims.

, I claim:

1. In a machine for straightening of wires drawn from a coil of saidwires,

a frame, a freely rota-table drum carrying said coil during the drawingof said wire, a horizontally disposed, hollow shaft non-rotatablymounted on said frame,

said drum being rotatably mounted on said hollow shaft and having asmaller outer diameter than the inner diameter of said coil,

- a spider secured to the free end of said hollow shaft and disposed atthe free end of said drum,

a plurality of receiving arms pivotally secured to said spider, saidreceiving arms extending in one of their positions in axial direction ofsaid drum to assume a coil carrying position, and extending radiallyrelative to said drum in the other of their positions,

a control rod axially movable in said hollow shaft,

a plurality of levers comprising two arms pivotally connected togetherand respectively coordinated to each of said receiving arms,

one of said lever arms being rigidly secured to the pivoted end of thecorresponding one of said receiving arms and pivotally connected to theother of said lever arms, respectively, and

the other of said arms being pivota-lly connected to said one of saidarms and to the free end of said control shaft, respectively,

so that upon axial movement of said control rod from its innermostposition in said hollow shaft to its outermost position said receivingarms swing from their substantially axial, coil carrying position intotheir radial position, simultaneously moving said coil onto said drum,by means of said arms of said lever, said arms swinging from a relativeangular position into an aligned position.

2. The machine, as set forth in clai-m'l, which includes a 25 housingdisposed at the rear end of said drum, a guide rim formed by saidhousing for guiding the pull-off wire of said coil, said guide rimdefining a recess and a pair of pull-oil rollers disposed in said recessand adapted to feed oli' said wire from said coil on said drum.

3. The machine, as set forth in claim 2, wherein said pull-off rollersare formed as straightening rollers.

Brown Dec. 18, 1923

